A panoramic projection device

Abstract

The utility model discloses a panoramic projection device belongs to projection device technical field. This kind of panoramic projection device, including connecting piece, the outside of connecting piece is equipped with distance adjusting subassembly, and distance adjusting subassembly includes mounting plate, and the inside of mounting plate is equipped with sliding slot, and the number of sliding slot is four, and the inside of sliding slot is equipped with sliding block, and the bottom of sliding block all is equipped with angle adjusting subassembly, and angle adjusting subassembly includes mounting seat, and the bottom of mounting seat and sliding block are welded fixed, and the below of mounting seat is equipped with azimuth angle adjusting seat, and the below of azimuth angle adjusting seat is equipped with the angle of depression adjusting seat, and the bottom of angle of depression adjusting seat is installed with projector, and the bottom inside of mounting seat is installed with first micro double -shaft motor, and the two output ends of first micro double -shaft motor are fixedly connected with the inner wall of azimuth angle adjusting seat, and the bottom inside of azimuth angle adjusting seat is installed with second micro double -shaft motor, and the two output ends of second micro double -shaft motor are fixedly connected with the inner wall of the angle of depression respectively.

Description

Technical Field

[0001] This utility model relates to the field of projection device technology, specifically a panoramic projection device. Background Technology

[0002] Panoramic projection devices are systems that use multi-dimensional projection technology to achieve a large-scale, immersive visual presentation. The core of this technology is the stitching, blending, and adaptation of projected images to cover the observer's entire field of vision (typically a 360° horizontal view or a panoramic range including a vertical view), creating an immersive feeling of being "surrounded by the image." Unlike ordinary projection's single-plane projection, it uses multiple projectors (or specially designed projection units) working together to project images onto circular screens, spherical screens, irregular curved surfaces, or even space, covering the observer's front, back, left, right, and even top and bottom fields of vision, eliminating the "sense of image boundaries." Relying on geometric correction and color fusion technology, the projected images from multiple projectors are precisely stitched, distortion corrected, and color unified to ensure a smooth and natural final panoramic image. Some advanced devices incorporate sensors (such as motion capture and eye tracking) to allow the projected content to respond in real-time to the observer's viewpoint or movements, enhancing the interactive experience of "being in the picture."

[0003] Chinese Patent Publication No. CN206311884U discloses a panoramic projection device, comprising: four displays arranged symmetrically on the same horizontal plane; a cone-shaped imaging screen composed of four transparent isosceles triangular plates; a base supporting the imaging screen; a rotating support body supporting the displays and capable of rotating the displays; and a controller installed inside the rotating support body for controlling the content displayed on the displays. The rotating support body includes: a motor for rotating the support rod, controlled by the controller; a motor speed control device for adjusting the motor speed; a support plate for housing the controller; and a power cord for connecting to an external power source to supply power to the motor. With this invention, viewers can see a three-dimensional image suspended within the imaging screen from four directions without any tools, simply by looking directly at it. This provides a high degree of novelty and visual appeal, enhancing the user experience.

[0004] In practical use, the technical solutions described in this paper often involve display devices that are installed using fixed brackets or rotating supports. These devices lack flexible angle adjustment mechanisms and cannot achieve independent and precise control of the azimuth angle (left and right) and the tilt angle (up and down). The angle requirements of projectors vary significantly depending on the type of screen used, such as conical screens, circular screens, and irregular curved screens. The adjustment method, which relies on overall rotation, cannot flexibly match the angle combinations of different screens. As a result, the device can only be adapted to screens of specific sizes or shapes, making it difficult to meet the needs of diverse panoramic projection scenarios (such as exhibition halls, theaters, and virtual simulations). Utility Model Content

[0005] The purpose of this invention is to provide a panoramic projection device to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A panoramic projection device includes a connector. An adjustment assembly is provided on the outside of the connector. The adjustment assembly includes a mounting plate. Four grooves are formed inside the mounting plate. A slider is provided inside each groove. An angle adjustment assembly is provided at the bottom of each slider. The angle adjustment assembly includes a mounting base. The upper end of the mounting base is welded and fixed to the bottom end of the slider. An azimuth adjustment base is provided below the mounting base. A pitch adjustment base is provided below the azimuth adjustment base. A projector is mounted at the bottom of the pitch adjustment base. A first micro dual-axis motor is installed inside the bottom of the mounting base. The two output ends of the first micro dual-axis motor are fixedly connected to the inner wall of the azimuth adjustment base. A second micro dual-axis motor is installed inside the bottom of the azimuth adjustment base. The two output ends of the second micro dual-axis motor are respectively fixedly connected to the inner wall of the pitch adjustment base.

[0008] Furthermore, the output shaft of the first micro dual-axis motor extends horizontally, and the output shaft of the second micro dual-axis motor extends vertically. The output shafts of the first and second micro dual-axis motors are spatially orthogonal. The two output ends of the first micro dual-axis motor rotate in the same direction and have the same speed, as do the two output ends of the second micro dual-axis motor.

[0009] The beneficial effects of adopting the above-mentioned further scheme are that the output shaft of the first micro dual-axis motor controls the left and right deflection of the azimuth adjustment seat in the horizontal direction; the output shaft of the second micro dual-axis motor controls the up and down swing of the pitch adjustment seat in the vertical direction, so that the azimuth and pitch adjustments do not interfere with each other; the two output ends of the first micro dual-axis motor rotate in the same direction and at the same speed, and the two output ends of the second micro dual-axis motor rotate in the same direction and at the same speed, ensuring that the azimuth adjustment seat and the pitch adjustment seat are subjected to symmetrical forces.

[0010] Furthermore, the rotation center of the azimuth adjustment seat and the rotation center of the pitch adjustment seat are at the same point.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the rotation center of the azimuth adjustment seat (around the horizontal axis) and the rotation center of the pitch adjustment seat (around the vertical axis) coincide with the optical center of the projector (the center of the lens); when adjusting the angle, the position of the optical center remains unchanged and only the direction changes, which completely avoids the image splicing misalignment caused by the optical center offset. Even if there is a slight installation deviation, such as the optical center offset ≤0.5mm, the error can still be offset by fine-tuning the angle, reducing the accuracy requirements for on-site debugging.

[0012] Furthermore, a first connecting seat is welded to the top surface of each of the four sliders, and four electric slide rails are evenly distributed around the outer wall of the connector. Electric sliders are slidably connected to the outer sides of the four electric slide rails. Connecting rods are symmetrically hinged to the outer wall of the first connecting seat, and a second connecting seat is hinged between the ends of a pair of connecting rods away from the first connecting seat. The second connecting seat is welded and fixed to the outer wall of the corresponding electric slider.

[0013] The advantages of adopting the above-mentioned further solution are as follows: Because the four motorized sliding rails are evenly distributed circumferentially, it ensures that the four projectors are evenly distributed along the circumference, avoiding gaps in the image splicing or uneven brightness; because the two ends of a pair of connecting rods are respectively hinged to the first and second connecting seats, the motorized slider is driven to move downwards via the motorized sliding rails, and under the connection of the second connecting seat, the connecting rod, and the first connecting seat, the slider is driven to extend radially; the motorized slider is driven to move upwards via the motorized sliding rails, and under the connection of the second connecting seat, the connecting rod, and the first connecting seat, the slider is driven to retract radially; the hinged connecting rods support a large stroke adjustment (0-200mm), adapting to screens with diameters of 3-10m, improving scene compatibility.

[0014] Furthermore, the longitudinal section of the slider is in the shape of an "I", and the outer wall of the slider slides in conjunction with the inner wall of the groove.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, since the longitudinal section of the slider is I-shaped, the I-shaped flange engages with the slide groove, restricting the slider to slide only radially, thus ensuring the adjustment accuracy and the stability of the projector's posture.

[0016] Furthermore, the top surface of the connector is provided with a plurality of mounting holes, the number of which is four, and the four mounting holes are distributed in a ring at equal distances, and each of the four mounting holes is provided with an internal thread groove.

[0017] The advantage of adopting the above-mentioned further solution is that by setting four mounting holes with internal threaded grooves, it supports quick bolt connection, allowing the connector to be installed on the indoor ceiling.

[0018] Furthermore, the first connecting seat, the connecting rod, the second connecting seat, and the mounting seat are all made of stainless steel.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the first connecting seat, connecting rod, second connecting seat, and mounting seat are made of stainless steel. Stainless steel is wear-resistant, corrosion-resistant, rigid, stable, and resistant to temperature changes. The tensile strength of stainless steel is ≥500MPa, and the deformation under load is ≤0.05mm, ensuring the accuracy of adjustment distance and angle.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: In this panoramic projection device, the electric slide rail drives the electric slider to slide downward (closer to the center of the connector), the second connecting seat moves downward simultaneously, and the connecting rod swings downward around the hinge point of the first connecting seat. The first connecting seat is subjected to radial thrust, causing the slider to slide outward along the slide groove; the electric slide rail drives the electric slider to slide upward (away from the center of the connector), the second connecting seat moves upward simultaneously, and the connecting rod swings upward around the hinge point of the first connecting seat. The first connecting seat is subjected to radial tension, causing the slider to slide inward along the slide groove. The system is as follows: The first micro dual-axis motor output shaft controls the azimuth adjustment seat to rotate left and right in the horizontal direction, adjusting the left and right orientation of the projector to ensure that the image is aligned with the horizontal section of the screen (such as the left side screen or the front screen); The second micro dual-axis motor output shaft controls the tilt adjustment seat to swing up and down in the vertical direction, adjusting the vertical tilt of the projector to ensure that the image covers the vertical area of ​​the screen (such as the upper and lower edges of a cone screen); The azimuth and tilt adjustments do not interfere with each other during the adjustment process; This allows users to fine-tune the position of the projector according to the screen during installation. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a panoramic projection device provided by this utility model;

[0022] Figure 2 A bottom-view three-dimensional structural diagram of a panoramic projection device provided by this utility model;

[0023] Figure 3 A three-dimensional structural schematic diagram of the distance adjustment component of a panoramic projection device provided by this utility model;

[0024] Figure 4 A three-dimensional structural schematic diagram of the angle adjustment component of a panoramic projection device provided by this utility model;

[0025] Figure 5 An exploded three-dimensional structural diagram of the angle adjustment component of a panoramic projection device provided by this utility model.

[0026] In the diagram: 1. Connector; 2. Adjustment assembly; 21. Mounting plate; 22. Slide rail; 23. Slider; 24. First connecting seat; 25. Electric slide rail; 26. Electric slider; 27. Second connecting seat; 28. Linkage rod; 3. Angle adjustment assembly; 31. Mounting seat; 32. First miniature dual-axis motor; 33. Azimuth angle adjustment seat; 34. Second miniature dual-axis motor; 35. Pitch angle adjustment seat; 4. Projector. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a panoramic projection device, including a connector 1, an adjustment component 2 on the outside of the connector 1, an adjustment component 2 including a mounting plate 21, a sliding groove 22 inside the mounting plate 21, four sliding grooves 22, a slider 23 inside the sliding groove 22, an angle adjustment component 3 at the bottom of each slider 23, an angle adjustment component 3 including a mounting base 31, the upper end of the mounting base 31 being welded and fixed to the bottom end of the slider 23, an azimuth angle adjustment base 33 below the mounting base 31, a pitch angle adjustment base 35 below the azimuth angle adjustment base 33, a projector 4 mounted at the bottom of the pitch angle adjustment base 35, and a first micro dual-axis motor 32 mounted inside the bottom end of the mounting base 31. The two output ends of the first micro dual-axis motor 32 are fixedly connected to the inner wall of the azimuth adjustment seat 33. A second micro dual-axis motor 34 is installed inside the bottom of the azimuth adjustment seat 33. The two output ends of the second micro dual-axis motor 34 are fixedly connected to the inner wall of the pitch angle adjustment seat 33 respectively. The output shaft of the first micro dual-axis motor 32 controls the left and right deflection of the azimuth adjustment seat 33 in the horizontal direction. The output shaft of the second micro dual-axis motor 34 controls the up and down swing of the pitch angle adjustment seat 35 in the vertical direction, so that the azimuth angle and pitch angle adjustments do not interfere with each other. This makes it convenient for users to fine-tune the position of the projector 4 according to the screen during installation. Through the cooperation of the distance adjustment component 2 and the angle adjustment component 3, it is convenient for users to fine-tune the position of the projector 4 according to the screen during installation.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5This utility model provides a technical solution: the output shaft of the first micro dual-axis motor 32 extends horizontally, and the output shaft of the second micro dual-axis motor 34 extends vertically. The output shafts of the first micro dual-axis motor 32 and the second micro dual-axis motor 34 are spatially orthogonal. The two output ends of the first micro dual-axis motor 32 have the same direction of rotation and the same speed. The two output ends of the second micro dual-axis motor 34 have the same direction of rotation and the same speed. The rotation center of the azimuth adjustment seat 33 and the rotation center of the pitch adjustment seat 35 are at the same point. The rotation center of the azimuth adjustment seat 33 around the horizontal axis and the rotation center of the pitch adjustment seat 35 around the vertical axis coincide at the center of the optical center lens of the projector 4. When adjusting the angle, the position of the optical center remains unchanged, only the direction changes, which completely avoids the image splicing misalignment caused by the optical center offset. Even if there is a small installation deviation, such as the optical center offset ≤0.5mm, the error can still be offset by fine-tuning the angle, reducing the accuracy requirements for on-site debugging.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5 This utility model provides a technical solution: First connecting seats 24 are welded to the top surfaces of four sliders 23. Four electric slide rails 25 are evenly distributed circumferentially on the outer wall of the connector 1. Electric sliders 26 are slidably connected to the outer sides of the four electric slide rails 25. Connecting rods 28 are symmetrically hinged to the outer walls of the first connecting seats 24. Second connecting seats 27 are hinged between the ends of a pair of connecting rods 28 away from the first connecting seats 24. The second connecting seats 27 are welded and fixed to the outer walls of the corresponding electric sliders 26. The longitudinal section of the slider 23 is I-shaped. The outer wall of the slider 23 slides in cooperation with the inner wall of the slide groove 22. Several mounting holes are opened on the top surface of the connector 1. The number of mounting holes is four, and the four mounting holes are arranged in an equidistant ring. The four mounting holes are distributed and each has an internal threaded groove. The first connecting seat 24, the connecting rod 28, the second connecting seat 27, and the mounting seat 31 are all made of stainless steel. The electric slide rail 25 drives the electric slider 26 to slide downwards towards the center of the connector 1. The second connecting seat 27 moves downwards simultaneously, and the connecting rod 28 swings downwards around the hinge point of the first connecting seat 24. The first connecting seat 24 is subjected to radial thrust, which drives the slider 23 to slide outwards along the slide groove 22. The electric slide rail 25 drives the electric slider 26 to slide upwards away from the center of the connector 1. The second connecting seat 27 moves upwards simultaneously, and the connecting rod 28 swings upwards around the hinge point of the first connecting seat 24. The first connecting seat 24 is subjected to radial tension, which drives the slider 23 to slide inwards along the slide groove 22.

[0033] Specifically, the working principle of this panoramic projection device is as follows: During use, the position of connector 1 is calibrated, and holes are drilled in the corresponding positions on the indoor ceiling according to the mounting hole positions. Connector 1 is then installed on the indoor ceiling using bolts. At this point, the user has completed the screen assembly and installation. Based on the screen position, the position of each projector 4 is fine-tuned. The electric slide rail 25 drives the electric slider 26 to slide downwards towards the center of connector 1, and the second connecting seat 27 moves downwards simultaneously. The connecting rod 28 swings downwards around the hinge point of the first connecting seat 24. The first connecting seat 24 experiences radial thrust, causing the slider 23 to slide outwards along the slide groove 22. The electric slide rail 25 drives the electric slider 26 to slide upwards away from the center of connector 1, and the second connecting seat 27 moves downwards simultaneously. The connecting rod 28 moves upward and swings upward around the hinge point of the first connecting seat 24. The first connecting seat 24 is subjected to radial tension, which drives the slider 23 to slide inward along the slide groove 22. The output shaft of the first micro dual-axis motor 32 controls the azimuth angle adjustment seat 33 to deflect left and right in the horizontal direction, adjusting the left and right direction of the projector 4 to ensure that the image is aligned with the horizontal section of the screen, such as the left side screen and the front screen. The output shaft of the second micro dual-axis motor 34 controls the tilt angle adjustment seat 35 to swing up and down in the vertical direction, adjusting the vertical tilt of the projector 4 to ensure that the image covers the vertical area of ​​the screen, such as the upper and lower edges of the conical screen. Through the adjustment of the left and right side angles and the tilt angle, the optical axis of the projector 4 is precisely aligned with the target area of ​​the screen, realizing seamless splicing of multiple device images.

[0034] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A panoramic projection device, characterized in that, The system includes a connector (1), and an adjustment assembly (2) is provided on the outside of the connector (1). The adjustment assembly (2) includes a mounting plate (21), and four grooves (22) are provided inside the mounting plate (21). A slider (23) is provided inside the grooves (22), and an angle adjustment assembly (3) is provided at the bottom of each slider (23). The angle adjustment assembly (3) includes a mounting base (31), the upper end of which is welded and fixed to the bottom end of the slider (23). An azimuth adjustment seat is provided below the mounting base (31). (33) A pitch angle adjustment seat (35) is provided below the azimuth adjustment seat (33). A projector (4) is installed at the bottom of the pitch angle adjustment seat (35). A first micro dual-axis motor (32) is installed inside the bottom of the mounting seat (31). The two output ends of the first micro dual-axis motor (32) are fixedly connected to the inner wall of the azimuth adjustment seat (33). A second micro dual-axis motor (34) is installed inside the bottom of the azimuth adjustment seat (33). The two output ends of the second micro dual-axis motor (34) are fixedly connected to the inner wall of the pitch angle adjustment seat (33).

2. The panoramic projection device according to claim 1, characterized in that, The output shaft of the first micro dual-axis motor (32) extends horizontally, and the output shaft of the second micro dual-axis motor (34) extends vertically. The output shafts of the first micro dual-axis motor (32) and the second micro dual-axis motor (34) are spatially orthogonal.

3. A panoramic projection device according to claim 2, characterized in that, The rotation center of the azimuth adjustment seat (33) is the same as the rotation center of the pitch adjustment seat (35).

4. A panoramic projection device according to claim 1, characterized in that, The top surfaces of the four sliders (23) are each welded with a first connecting seat (24). The outer wall of the connector (1) is evenly equipped with four electric slide rails (25) along the circumference. The outer sides of the four electric slide rails (25) are each slidably connected with an electric slider (26). The outer wall of the first connecting seat (24) is symmetrically hinged with connecting rods (28). A second connecting seat (27) is hinged between the ends of a pair of connecting rods (28) away from the first connecting seat (24). The second connecting seat (27) is welded and fixed to the outer wall of the corresponding electric slider (26).

5. A panoramic projection device according to claim 4, characterized in that, The longitudinal section of the slider (23) is in the shape of an "I" and the outer wall of the slider (23) slides in conjunction with the inner wall of the groove (22).

6. A panoramic projection device according to claim 5, characterized in that, The top surface of the connector (1) is provided with a number of mounting holes, the number of which is four. The four mounting holes are distributed in a ring at equal distances, and each of the four mounting holes is provided with an internal thread groove.

7. A panoramic projection device according to claim 4, characterized in that, The first connecting seat (24), the connecting rod (28), the second connecting seat (27) and the mounting seat (31) are all made of stainless steel.

Images